You probably have the UK version of the game and that requires two patches; 1.0a and 1.0b. They're available here.

If you can't install 1.0a, you'll need to reinstall the game following the instructions in the second post of that thread you linked to. If your save still won't work at that point, save game files are available here that can be altered with KSE.

"They should rename the team to the Washington Government Sucks. Put Obama on the helmet. Line the entire walls of the stadium with the actual text of the ACA.

Fix their home team score on the board to the debt clock, they can win every game 17,000,000,000,000 to 24. Losing team gets taxed by the IRS 100%, then droned."